Audi Hungaria uses large amounts of aluminum for automobile production, approximately 38,000 metric tons per year. Because the production of aluminum is very energy intensive, Audi Hungaria manages the material in a recycling loop. This conserves energy and valuable resources. With the Aluminum Closed Loop, aluminum waste arising during production is returned to the supplier, who uses it to produce aluminum coils of original quality and returns these to Audi. This closes the loop and provides for sustainable production.